#include <stdio.h>

int Sum(int top)
{
  int i = 1;
  int ret = 0;
  for(;i <= top;i++)
  {
    ret += i;
  }
  return i;
}

int main()
{
  int top = 100;
  int result = Sum(top);

  printf("result : %d\n",result);
  return  0;
}

